Home / 21,630.65-29,843.30-12,068.97

Finding the Fourth Proportional to 21,630.65, 29,843.30 and 12,068.97

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Solution

The fourth proportional to 21,630.65, 29,843.30 and 12,068.97 is: 16,651.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.65 : 29,843.30 = 12,068.97 : x
  2. Step 2: Convert to fraction form
    21,630.65/29,843.30 = 12,068.97/x
  3. Step 3: Cross multiply
    21,630.65x = 29,843.30 × 12,068.97
  4. Step 4: Simplify right side
    21,630.65x = 360,177,832.06
  5. Step 5: Solve for x
    x = 360,177,832.06/21,630.65
  6. Step 6: Final answer
    x = 16,651.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.